A high proportion of the nitrogen found in lakes and rivers is present in the form of nitrate. The concentration of nitrate in many surface waters has increased over the last forty years (OECD, 1982; Roberts and Marsh, 1987; Johnes and Burt, 1993). The main source of nitrate is diffuse drainage from agricultural land (Vinten and Smith, 1993) but point sources can be important in populated areas (Jarvey et al., 1998). In 1991, the European Union introduced the Nitrates Directive (91.676) to protect waters from pollution by nitrate leached from agricultural land.
CITATION STYLE
George, G., Järvinen, M., Nõges, T., Blenckner, T., & Moore, K. (2010). The Impact of the Changing Climate on the Supply and Recycling of Nitrate. In The Impact of Climate Change on European Lakes (pp. 161–178). Springer Netherlands. https://doi.org/10.1007/978-90-481-2945-4_10
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